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Inspection Standards And Testing Methods for Hardware Made-in-china Product Inspection Service Hardware Inspection Inspection Standards And Testing Methods for Hardware Made-in-china Product Inspection Service Hardware Inspection
Inspection Standards And Testing Methods for Hardware Made-in-china Product Inspection Service Hardware Inspection Inspection Standards And Testing Methods for Hardware Made-in-china Product Inspection Service Hardware Inspection
Inspection Standards And Testing Methods for Hardware Made-in-china Product Inspection Service Hardware Inspection Inspection Standards And Testing Methods for Hardware Made-in-china Product Inspection Service Hardware Inspection
Inspection Standards And Testing Methods for Hardware Made-in-china Product Inspection Service Hardware Inspection Inspection Standards And Testing Methods for Hardware Made-in-china Product Inspection Service Hardware Inspection
Inspection Standards And Testing Methods for Hardware Made-in-china Product Inspection Service Hardware Inspection Inspection Standards And Testing Methods for Hardware Made-in-china Product Inspection Service Hardware Inspection
Inspection Standards And Testing Methods for Hardware Made-in-china Product Inspection Service Hardware Inspection Inspection Standards And Testing Methods for Hardware Made-in-china Product Inspection Service Hardware Inspection

Inspection Standards And Testing Methods for Hardware Made-in-china Product Inspection Service Hardware Inspection

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Consumer Goods Inspection We help to ensure the quality, safety and sustainability of consumer products to satisfy regulatory requirements as well as the demands of the market. Third-party inspection of consumer products is a crucial step in a global quality assurance program to ensure the product meets quality and specification prior to shipment and market. YSI holds a team of trained full-time inspectors across all categories of consumer goods and located in all around China and Southeast Asia in support of client inspection needs. Control de calidad de carga de contenedores y servicio de inspección de Pre embarque de terceros, encuentre información detallada sobre Control de calidad de carga de contenedores y servicio de inspección de Pre embarque de terceros, servicio de inspección de terceros servicio de prueba profesional
Product Description

Inspection standards and testing methods for hardware


The sampling standard is based on GB/T 2828.1-2003 Class II level one-time sampling scheme

Critical defect (CR)AQL=0; Major defect (Maj)AQL=0.65; Minor defect (Min)AQL=1.0.

Sample plan and limit sample: The text is difficult to describe clearly or it is difficult to determine the appearance of unqualified defects, the customer shall provide the acknowledged sample and illustrative pictures for inspection as a basis.

Inspection/test environment

CASEASE

1 m to 1.5 m

30 to 45 degrees

500 ~ 1000 LUX

Visual distance: 30 cm

Indoor temperature: 25℃±5℃

Brightness: 500 ~ 1000Lux

Visual condition: normal visual acuity, 1.0 or above;

(Look back and forth on each surface for 10 seconds)

Position: The product is placed 30cm in front of the inspector, the inspector is 45±15 degrees in the product (that is, the standard sitting position of visual personnel, the machine is placed flat on the workbench); Scanning time: 10 seconds/time/surface

Inspection of hardware

Definition of bad categories

A serious shortcoming

Critical Defect A critical defect which, based on judgment and experience, shows that a dangerous or unsafe result may occur to the person using the product.

The Lord wants something missing

Major Defect refers to a defect other than a serious defect that may result in a defect or defect or substantially degrade the performance of the product so that the desired goal cannot be achieved.

The second point is missing

(Minor

Defect Secondary defect refers to a defect where the product's usability may not substantially reduce the desired purpose or where the defect differs from established standards but has no significant impact on the product's use and operational effectiveness.

List of plastics inspection: (Refer to the rules of judgment for details)

NO. Test fixture for project inspection content

Bad judgment

CRMajMin

1. Defects of appearance inspection (see detailed rules of judgment standard for details) :

Side A: Grade B (≤0.1mm^2)

Two points are allowed on one side, and the distance between points is not less than 100mm.

Side B: Grade C (≤0.2mm^2)

A). Two points are allowed on one side, and the distance between points is not less than 100mm.

B). If the point is less than 0.1mm^2, 3 points are allowed on one side, and the distance between points is not less than 100mm.

C). If any point on one side is greater than 0.1mm^2, it is applicable to project a.

Surface C: D grade (≤0.3mm^2)

A). Two points are allowed on one side, and the distance between points is not less than 50mm.

B). If the point is less than 0.2mm^2, 3 points are allowed on one side, and the distance between points is not less than 50mm.

C). If any point on one side is greater than 0.2mm, it is applicable to item a. Visual inspection, fixture: stain card

Spot defects include: bubbles, stains, paint particles, spotty impurities, paint removal, dents, etc

Thread-like impurities

Side A: length ≤3mm, quantity as above;

Side B: length ≤5mm, quantity as above;

Side C: length ≤8mm, quantity as above. Black mark card

Insensitive scratch (width ≥0.08mm)

Side A: length ≤6mm, quantity as above;

Side B: length ≤12mm, quantity as above;

Side C: length ≤20mm, quantity as above. Black mark card

Sensible scratch (width ≤0.08mm)

Side A: area 0.5mm ^2, the quantity is the same as above;

Side B: area 1.0mm ^2, the quantity is the same as above;

Side C: Area 1.5mm ^2, quantity as above. Black mark card

Raw edge:

Side A ≦ 0.1mm

B side ≦ 0.2mm

Surface C ≦ 0.3mm gauge

Bending deformation:

In general:

LCD BACK allows external convex (not concave),

The HINGE COVER allows both ends to turn up.

But no matter what kind of deformation, its deformation is not more than 3/1000 marble platform, feeler

Art Line:

The separation is required to be clear, and no heterochromatic inspection is allowed in the slot of the art line

2 Dimensions Refer to EER

Key control sizes include :LOGO slot, long and wide LOGO slot sizes of plastic parts must meet the requirements (focus on following up the product return);

The other size is mainly composed of real, pay attention to the gap, break difference problems.

3 Color difference Color difference value: The value must meet ΔE+-1.0

The surface of the paint layer of plastic parts should be smooth, uniform color difference meter, standard color plate

4 Reliability test hardness:

The hardness of the coating layer is measured according to GB/T

In the mechanical method of 6739, the Mitsubishi Uni pencil is about 45° with the horizontal plane, the pressure of the tip is 500g/cm2, and the paint layer of the sample is pushed and pressed, and the speed of about 1cm/s is about 1cm ~ 3cm to scratch on the coating. For each stroke, grind the lead and repeat at least five strokes with the same hardness pencil. Film pencil hardness scratching instrument

The corresponding size of pencil

200 mesh sandpaper

No residual scratches and damage is qualified

Adhesion:

To determine the adhesion of the coating layer, use a sharp utility knife to mark a straight line on the surface of the coating layer at a 1mm parallel distance (cut through the coating at one time) in a checkerboard shape, and make a 3M610-1PK adhesive tape (tensile strength: 5.0)

N/mm; Metal bonding force: 0.5

N/mm; Elongation at break: 15%) tightly attached to the film surface, can be rolled three times with a rubber roller. Place for 30 seconds, and then pull up the stripping adhesive at a speed of 0.6 ~ 1.0m/s at a 90° Angle. Fixture:

Utility knife, hundred box knife

3M610-1PK type adhesive tape

No flake shedding phenomenon is qualified

Resistance to friction:

Use EF74 eraser to wipe 200 cycles with a force of 500g/cm2 and a speed of 50 cycles /min at a distance of 3cm. Fixture :EF74 eraser

Not exposed plastic substrate is qualified

5 Other copper nuts

The height of the copper nut (the distance between the copper nut and the BOSS surface) shall not be higher than that of the BOSS surface and shall be 0.05-0.15mm lower than that of the BOSS surface

It is necessary to pay attention to the occurrence of leakage melting and melting of wrong nuts.

Tension value and torque value of copper nut

M1.6: tension value ≥10kgf, torsion value ≥3kgf;

M2.0: tension value ≥15kgf, torque value ≥4kgf;

M2.5: tension value ≥25kgf, torsion value ≥5kgf; Tension meter, torsion meter

(This test should be performed if PL finds a nut drop event)

The pull torque value varies with the manufacturer. If the EER value is specified, use the EER value

6 Package check whether there is a delivery label, GP label and whether the label content is clear, complete and correct eye inspection

Note whether there are incoming materials before and after mold modification between the same batch

Confirm whether the outsourcing has any damage and collision marks (pay special attention to the four corners)

Whether there are mixed materials, wrong materials, short loading phenomenon

6. List of inspection for hardware (refer to the rules of judgment for any details)

NO. Test fixture for project inspection content

Bad category

CRMajMin

1 Appearance check whether there is dirt, oil stains, oxidation phenomenon visual inspection, do not need to paste, allow the existence of anti-rust oil

Whether the material, thickness and surface treatment process are the same shall be compared with the sample. No difference or slight difference can be accepted

Deformation of stamping parts

After placing the product on the platform, the 4 corners are on the same plane; Or 3 corners of the ground, one corner up ≤1.0mm. Common deformed materials are :HDD support; TP SUPP, etc

The acceptable degree of deformation shall be based on no mechanism interference and no assembly clearance.

Body has no pollution, foreign body, riveting is correct eye inspection

Whether the size is in conformity with the specification (IQC shall check the size marked in the acknowledgement letter, and IQC shall record 6 data for each size of each feed) practical assembly

3 Reliability test salt spray test visual inspection

5% concentration brine immersion test

The test of HINGE is completed by the test department when necessary

4. The supplier shall provide special fixture for measuring when necessary, such as bending Angle and maximum Angle of HINGE

5 Package check whether there is a delivery label, GP label and whether the label content is clear, complete and correct

Note whether there are incoming materials before and after mold modification between the same batch

Confirm whether the outsourcing has any damage or collision marks

There is no mixing material, wrong material, short load



Pre-production Inspection (PPI)

A visual check on the quality of components, materials, and accessories at the beginning of production against clients' specifications and/or reference sample. The PPI thus permits timely corrections and improvements before the mass cargo will be manufactured, any non-conformity is immediately reported so as to avoid delay in shipment. In general, we will check the following aspects for PPI:
Evaluate the production status during the manufacturing process
Randomly inspect the finished samples on-site and compare them with your product spec
According to the evaluated status of finished and semi- finished samples, rearrange the QC layout in the factory.
Evaluate the packing details and packing material
Check the accuracy of production equipments and disposal methods for defective goods


100% inspection (Full Inspection)

When the merchandise is 100% completed, we will check the quality of goods unit by unit, which covers product description, style &color, workmanship, quality, function, label, package, size measurement if available etc, to make sure 100% of the goods meet your specified quality requirement. Note: for those products of high value or complicated internal structure, we suggest to take full inspection.


Container Loading Supervision (CLS)

Before loading, our inspector will check products' information, qty, package, during the course of loading, our inspectors will keep closely look at the loading process, ensure that the export cartons are well arranged in the container with no risks of deformation, collapse, help manufacturer finish loading under correct and clear working clauses and working process. In general:
Record the weather/arrival time of container/No./truck No Check the inner/outer condition to see if there is any
damage/wet/hole/peculiar smell Check the qty of goods loaded and record the condition of outer packaging(master cartons/pallets).Randomly draw and open some cartons to verify that the goods meet with clients' specification Supervise the whole loading process.Seal the container with the custom's seal and unique quality inspection's seal Record the seal No. and departure time of container.


Random Inspection

(Pre-production Random Inspection, During Production Random Inspection, Pre-shipment Random Inspection) As per customer's quality requirement, we will sample the products according to international or other standards to inspect the packing, appearance, color, size, function, safety, etc.
Purpose of Pre-production Random Inspection: To help know the production status & raw material quality and avoid any mistake on quality standard, order quantity and make sure that the order is arranged;
Purpose of During Production Random Inspection: To help know the production status & product quality during production and avoid any mass quality problem & abnormal production situation;
Purpose of Pre-shipment Random Inspection: To know the finished products quality & quantity and avoid any mass quality problem & shortage shipment.


What do our QC inspectors (quality inspector) do for the inspections ?

1. Confirm the quantity of the products.

2. Confirm the packing detail information of the products.

3. Check the information or marks reqiured by clients, such as the information on the carton, information on gift box, information
on products, warning text and all the others.

4. Check the overall appearance of the product.

5. Check the conmponents of the products.

6. Perform the general tests.
(1) General function test.
(2) Dimension of packing or products.
(3) Gross weight or net weight.
(4) Carton drop test.
(5) Barcode number test.


7. List all the defects of products found during the inspection.

8. Any other work that clients want us to do during the inspection.



7

1.Why do I need shipment inspections or factory audits?
In case of any Poor quality, incorrect shipments, unreal information from suppliers. Inspection is the most efficient way to protect buyer’s right.


2.How to start the inspection?
(1)Book an Service 2-3 days in advance.
(2)Pay us the cost before inspection.
(3)Start inspection/audit work on the booked date.
(4)Send you reports within 24 hours after inspection.
(5)Continuing Services after inspection

3.What information does the inspection report include?
Our written reports are very detailed, including accurate description of all defects and inconsistencies, statistic analysis based
on the highly recognized AQL standard and plentiful spot pictures for illustration.A written report + Original pictures will provided within 12hours after inspection.

4.How can I get a rapid quotation?

Getting a rapid quotation should have a complete condition,such as gross weight size,quantity and where is the factory and where will it ship to."


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